Eudonia duospinata, Li, Weichun, Li, Houhun & Nuss, Matthias, 2012

Li, Weichun, Li, Houhun & Nuss, Matthias, 2012, Taxonomic revision of the genus Eudonia Billberg, 1820 from China (Lepidoptera: Crambidae: Scopariinae), Zootaxa 3273, pp. 1-27 : 22-23

20. Eudonia duospinata sp. n.

( Figs. 12 , 22 , 33 )

Type material. China: Holotype: 3, Xianfengling, Wuyishan (26°54ʹN, 116°42ʹE), Fujian Province, 1000 m, 26.v.2004, leg. Haili Yu (genitalia slide No. LWC06212). Paratypes: 5 3, 2 ƤƤ, same data as holotype (genitalia slide Nos. LWC06213, LWC07505); 2 3, Lianhuaping, Leigongshan (26°28ʹN, 108°17ʹE), Guizhou Province, 1600 m, 17.ix.2005, leg. Jialiang Zhang (genitalia slide No. LWC06093). 1 3, Hueisun Exp. Forest, Nantou (23°54ʹN, 120°40ʹE), Taiwan, 1100m, 22–24.iv.1999, leg. Mey and Ebert (genitalia slide No. LWC09077) ( ZMHB).

Diagnosis. This species is unique by the broad and short uncus in the male genitalia, whose posterior margin is convex medially and bears two spines laterally.

Description. Adult ( Fig. 12 ): Forewing length 5.0–6.0 mm. Frons pale brown. Vertex white mixed with pale brown. Labial palpus blackish brown, white on dorsal surface; first segment white ventrally at base. Maxillary palpus pale brown, white basally and distally. Antenna with scapus pale brown mixed with white; flagellomeres blackish brown and white on dorsal surface, pale brown on ventral surface. Patagium blackish brown. Thorax greyish. Tegula blackish brown, posterior margin with long white scales. Forewing covered with sparse blackish brown scales; antemedian line white, outcurved medially; antemedian stigmata blackish brown: stripelike proximal discoidal stigma connected with antemedian line, ovate cubital stigma separated from antemedian line; distal discoidal stigma blackish brown, X-shaped; postmedian line white, obliquely inward, meeting costa perpendicularly, meeting dorsum by acute angle; subterminal line white, incurved medially, roughly forming a K-pattern together with postmedian line; fringe yellowish white, with pale brown subbasal dots. Hindwing white; fringe concolorous with forewing except lighter subbasal line. Abdomen pale brown.

Male genitalia ( Fig. 22 ): Uncus broad and short, nearly square-shaped, slightly narrowed basally; posterior margin convex slightly at middle, with small posterolateral spine at each side. Gnathos triangular, broad basally, tapering to pointed apex. Valva almost parallel-sided dorsoventrally except narrowed slightly near base, apex obliquely blunt. Juxta broad basally, narrowed towards blunt apex. Phallus curved slightly, longer than valva.

Female genitalia ( Fig. 33 ): Papilla anale ovate, notched posteriorly; about one third length of apophysis posterior. Tergite eight about half as long as apophysis anterior. Ostium bursae about twice as wide as colliculum. Antrum funnel-shaped, posterior three fourths broadened towards ostium bursae, covered with dense tiny spines, anterior one fourth as wide as colliculum, covered with dense granules. Colliculum about one third length of ductus bursae. Ductus bursae with three folds, curved in M shape at anterior one third. Corpus bursae rounded, covered with dense tiny spines; signum rounded, placed at middle of corpus bursae; appendix bursae ovate, arising from anterolateral margin of corpus bursae.

Distribution. China (Fujian, Guizhou, Taiwan).

Etymology. The specific name is derived from the Latin prefix duo- = two, and the Latin spinatus = spinose, in reference to the uncus with posterolateral spine at each side in the male genitalia.

Figures

FIGURES 10 – 13. Adults of Eudonia spp. 10. E. tibetalis (Caradja): a. lectotype, b. labels, male; 11. E. altissima Leraut: a. holotype, b. labels, female; 12. E. duospinata sp. n., holotype, male; 13. E. cavata sp. n., holotype, male.

FIGURES 20 – 24. Male genitalia of Eudonia spp. 20. E. hexamera sp. n., holotype, genitalia slide No. LWC 08224; 21. E. magna sp. n., holotype, genitalia slide No. LWC 07476; 22, E. duospinata sp. n., holotype, genitalia slide No. LWC 06212; 23. E. cavata sp. n., holotype, genitalia slide No. LWC 05025; 24. E. tibetalis (Caradja), genitalia slide No. LWC 08110 (scales: 0.5 mm).

FIGURES 31 – 34. Female genitalia of Eudonia spp. 31. E. hexamera sp. n., paratype, genitalia slide No. LWC 06257; 32. E. magna sp. n., paratype, genitalia slide No. LWC 08010; 33. E. duospinata sp. n., paratype, genitalia slide No. LWC 07505; 34. E. cavata sp. n., paratype, genitalia slide No. LWC 08073 (scales: 0.5 mm).